Fix mapr cluster deployment
Fix mapr cluster deployment

There is issue in initiating distro in MapR plugin. The aim of this patch is to fix this issue.

Change-Id: I54253fe12a47c32f8caa4fd221d4b5358693e61a

tellesnobrega/sahara,egafford/sahara,openstack/sahara,openstack/sahara,tellesnobrega/sahara,egafford/sahara